HardLabs

Labrador

espotek-org·Labrador·PCB/Tinylab_proto1.kicad_pcb

Labrador PCB layout, top view — open source AVR/Arduino board by espotek-org

About the Labrador PCB

Labrador is an open source AVR/Arduino PCB design by espotek-org, published on GitHub. It is a 2-layer board measuring 36.8 × 34.7 mm, with 75 components from 37 distinct parts.

Its main chip is the AO6802, from the AVR/Arduino family. Other key parts include the AMS1117-3.3, LM324 and DMN63D8LDW. By type, the board carries 32 resistors, 18 capacitors, 11 connectors, 5 ICs, 4 inductors and 2 fuses.

It belongs with the test & measurement designs in this gallery.

From the project

EspoTek Labrador is a USB device that transforms your PC or smartphone into a fully-featured electronics lab. This repo holds all of the source code!

This repo hosts all of the software and hardware that makes Labrador possible.

For the documentation, please visit the wiki.

Once it's installed, open DesktopInterface/Labrador.pro, then Clean All -> Run qmake` -> Build All.

Alternatively, you can build on the command line. The process will consist of a subset of the commands present in the build scripts in the .github/workflows/ directory of this repo. These are run by Github to produce the packages on the releases page, but include app deployment commands that can be skipped for individual users.

Main components on the Labrador

AO6802AMS1117-3.3LM324DMN63D8LDW

Labrador bill of materials (BOM)

75 components, 37 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AO6802
ATXMEGA32A4U-AU
IC1
1
AMS1117-3.3
78L05
U1
1
LM324
U2
2
DMN63D8LDW
U3, U4
1
2N7002
Q_NMOS_GSD
Q1
2
SCOPE_OUT
P1, P5
1
USB_OTG
P2
1
DIG_OUT
P3
1
PDI/3V3
P4
1
DAC_OUT
P6
1
PSU
P7
1
DIG_IN
P8
1
FUSE_BYPASS
P9
1
EXPANSION
P10
1
SWITCH
P11
2
F_Small
F1, F2
1
FM5819-W
D_Schottky
D1
1
LED
D2
1
22UH
INDUCTOR
L1
1
100UH
INDUCTOR
L2
Show 17 more
QtyPartRefs
2
22UH
INDUCTOR
L3, L4
10
C
C1, C2, C8, C10, C11, C12, C13, C16 +2
3
C_Small
C3, C4, C5
2
CP1
C6, C9
1
1NF
C
C7
1
20PF
C
C14
1
20PF
CP1
C15
2
1M
R1, R2
1
75K
R3
1
75K
R4
8
1K
R5, R17, R18, R19, R20, R29, R30, R31
1
75K
1K
R6
6
28R
R7, R8, R11, R12, R13, R14
6
28R
R9, R10, R22, R23, R24, R25
5
28R
1K
R15, R16, R21, R26, R28
1
28R
100R
R27
1
100R
1K
R32

Labrador design files

The KiCad project lives in the espotek-org/Labrador repository on GitHub; these links point at the commit this page was built from.

Labrador: common questions

What microcontroller does the Labrador use?

The Labrador is built around the AO6802, from the AVR/Arduino family.

How big is the Labrador PCB?

The Labrador measures 36.8 × 34.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Labrador?

75 components, from 37 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Labrador design files?

From the espotek-org/Labrador repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Labrador design in my own project?

The repository has no license, so all rights stay with espotek-org. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Labrador without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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